Portable air conditioning unit



FIG. 1 is a perspective view of a portable air conditioning unit showing our new design;

FIG. 2 is an enlarged partial view taken from circle 2 in FIG. 1;

FIG. 3 is an enlarged partial view taken from circle 3 in FIG. 1;

FIG. 4 is a front elevation view of the design;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a first side elevation view thereof;

FIG. 7 is a second side elevation view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is an enlarged top plan view thereof.

The broken lines represent unclaimed portions of the portable air conditioning unit. 

CLAIM The ornamental design for a portable air conditioning unit, as shown and described. 